Abergwyngregyn, near Llanfairfechan, Gwynedd, North Wales
Coedydd Aber National Nature Reserve
Mixed-habitat reserve
Place photograph
6.5
Wildland
1–2 hours
Time
Parking charges may apply
Cost
Wild
Feel
Why it's Wildland
6.5At Coedydd Aber, an oak, hazel and alder valley leads towards Rhaeadr Fawr, where water drops from the Carneddau into a deep basin. Along the way, look for woodland life, a small interpretive display and traces of much older settlement.
This reserve earns its place through the combination of a dramatic mountain waterfall, a varied woodland-and-grassland valley, and archaeological remains. The waymarked approach makes the scenery and its layered story accessible on a focused half-day outing.
Wild · Atmospheric
Find your way
Open mapAbergwyngregyn, near Llanfairfechan, Gwynedd, North Wales
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The experience
Walk the waymarked valley trail from the lower car park to Rhaeadr Fawr, taking time for the woodland, open grassland and interpretive display. The official return route is 3.7 km and around 1½ hours; extend your visit with unhurried stops rather than assuming access beyond the marked trail.
Things to do
Follow the Aber Falls Walk
Take the waymarked out-and-back trail from the lower car park through woodland and open grassland to Rhaeadr Fawr.
About 1½ hours return
Explore the interpretive display
Visit the unstaffed display in an old stone building near the trail start. Its panels cover the local woodland, lichens, alder clog-making and human habitation. The building is not wheelchair accessible because of its narrow doorway.
Look for the valley’s archaeological traces
The reserve includes an Iron Age hillfort and remains of ancient round huts. The source does not specify their exact positions or access routes; check local information and stay on permitted paths.
Make a day of it
Quick escape · About 1½ hours
Quick escape: walk to Aber Falls
- 01
Start at the lower car park and follow the waymarked path along the valley.
- 02
Walk through woodland and open grassland to Rhaeadr Fawr.
- 03
Return by the same path.
Half day · About 2–3 hours
Make a half day of it: waterfall, woodland and local history
- 01
Follow the official 3.7 km return trail to Rhaeadr Fawr.
- 02
Pause at the benches and take in the woodland and open grassland along the valley.
- 03
Visit the interpretive display near the trail start for information about the woodland, lichens, clog-making and human history.
- 04
Allow extra time for stops and return along the same path.
Verified history
Natural Resources Wales describes archaeological features including an Iron Age hillfort and remains of several ancient round huts. The interpretive display also covers human habitation, from hillforts to farming and rural industry, and the history of clog-making using alder grown in the woodland.
Hidden details
Alder and clog-making — The interpretive display explains the history of clog-making using alder trees grown in the woodland—a distinctive link between the reserve’s trees and local rural industry.
A rich community of lichens — More than a hundred lichen species have been recorded in the reserve. The display introduces their variety and the humid conditions that support lichens, mosses, liverworts and ferns near the waterfall and river.
When to go
· Daylight; no specific time-of-day recommendation is established by the supplied sources.
The supplied official information does not identify a best season. The waymarked waterfall walk and reserve features are described without seasonal restrictions.
Check the forecast and current trail conditions before setting out. The path includes some loose gravel and a continuous gradual climb.
The route
- ascent
- 100 m gradual, continuous climb
- stiles
- Not stated; check before visiting
- surface
- 1.5 m wide compacted stone path with some loose gravel
- distance
- 3.7 km return (2.3 miles)
- duration
- About 1½ hours return
- difficulty
- Easy, according to Natural Resources Wales
- waymarking
- Waymarked trail from the lower car park
- route shape
- Out and back; return by the same path
- start point
- Lower car park, Coedydd Aber National Nature Reserve
- parking start
- Lower car park; official source lists free and charged parking and parking for Blue Badge holders. Check current arrangements.
- Rhaeadr Fawr (Aber Falls)
- Woodland of oak, hazel and alder
- Open grassland along the valley
- Interpretive display near the trail start
- Iron Age hillfort and ancient round-hut remains in the reserve
What to look for
- 01
Notice the oak, hazel and alder woodland, and the lush growth of mosses, liverworts and ferns near the waterfall and river. The display introduces local lichens, alder clog-making and the area’s human history
- 02
the reserve also has an Iron Age hillfort and remains of ancient round huts.
The story
Archaeology
Best time to go
Year-round; choose a clear day for the valley and waterfall, and check conditions before setting out.
Visit in daylight on a clear day if you want to appreciate the waterfall and valley setting. Conditions can change; check the forecast and local access information before setting out.
How long to spend
1–2 hours; allow longer to explore the interpretive display and pause along the trail.
Perfect for
Walkers · Photographers · Wildlife lovers · History lovers
Before you go
Address
Phone
Website
Listed hours
- Monday: Open 24 hours
- Tuesday: Open 24 hours
- Wednesday: Open 24 hours
- Thursday: Open 24 hours
- Friday: Open 24 hours
- Saturday: Open 24 hours
- Sunday: Open 24 hours
Check before visiting.
Google rating
Practical information
Opening & access
A waymarked trail runs from the lower car park through woodland and open grassland to Rhaeadr Fawr (Aber Falls). The official trail is 3.7 km return, takes about 1½ hours and climbs gradually by 100 m. Check current access and conditions before visiting.
Check before visiting
Parking
Lower car park; Natural Resources Wales lists both charged and free parking, as well as parking for Blue Badge holders. Check current arrangements before travelling.
Check before visiting
Toilets
Listed by Natural Resources Wales; check availability before visiting.
Check before visiting
Food & drink
A picnic area is listed. No café information supplied; check before visiting.
Check before visiting
Dogs
Check current rules with Natural Resources Wales before visiting.
Check before visiting
Accessibility
The official trail is 1.5 m wide with a compacted-stone surface and some loose gravel. The gates have RADAR locks. The interpretive display is in an old stone building and is not wheelchair accessible because of its narrow doorway. Check current access details before travelling.
Check before visiting
Cost
Parking charges may apply; the interpretive display is free.
Water
Waterfall, river
Gallery
Place photographsKeep exploring
Around Coedydd Aber National Nature Reserve
Within 50 km · approximate straight-line distances










